Use of nutrient medium technique for vegetation restoration in Karst region of Southwest China
Karst rocky desertification (KRD) is a global environmental degradation problem caused by human activities and vegetation deterioration. Vegetation restoration in KRD is very difficult due to severe water loss, soil erosion and extensive bare bedrock. For achieving vegetation restoration on bare bed...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2018-01-01
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| Series: | Journal of Integrative Environmental Sciences |
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| Online Access: | http://dx.doi.org/10.1080/1943815X.2018.1471725 |
| _version_ | 1828499409033232384 |
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| author | Fan Wu Changwu Liu Hongkai Chen Zhaofeng Diao Shuang Zhao Hui Xie |
| author_facet | Fan Wu Changwu Liu Hongkai Chen Zhaofeng Diao Shuang Zhao Hui Xie |
| author_sort | Fan Wu |
| collection | DOAJ |
| description | Karst rocky desertification (KRD) is a global environmental degradation problem caused by human activities and vegetation deterioration. Vegetation restoration in KRD is very difficult due to severe water loss, soil erosion and extensive bare bedrock. For achieving vegetation restoration on bare bedrock areas of KRD, the nutrient medium technique was developed, which is based on the special hydro-geological conditions that is seasonal rainfall is abundant in Karst region of Southwest China and limestone fissures are extremely developed and rich in fissure water. The objective of this research is to investigate the feasibility of using nutrient medium technique to achieve vegetation restoration in KRD region. Through the indoor and field experiments, some properties of the nutrient medium mixture were tested, including water retention, water absorption and nutrient retention. The results showed that the moisture content on the 75th day and water absorption rate of No.2 mixture was 19.9% and 1.67 mm/d, respectively, which could be used as optimum mix ratio for producing nutrient medium. The field results showed that the nutrient medium technique could effectively guarantee the survival of sapling at early age and sustainable growth at later age in the field, and the nutrient medium had less nutrient loss. This novel approach can retain and absorb moisture, and saplings do not need artificially supply water and fertiliser in the dry season, and the use of nutrient medium technique to achieve vegetation restoration in KRD region seems to be a feasible option. |
| first_indexed | 2024-12-11T13:24:06Z |
| format | Article |
| id | doaj.art-69cb9254cb68418da5df3e5a0aac27b3 |
| institution | Directory Open Access Journal |
| issn | 1943-815X 1943-8168 |
| language | English |
| last_indexed | 2024-12-11T13:24:06Z |
| publishDate | 2018-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Journal of Integrative Environmental Sciences |
| spelling | doaj.art-69cb9254cb68418da5df3e5a0aac27b32022-12-22T01:05:38ZengTaylor & Francis GroupJournal of Integrative Environmental Sciences1943-815X1943-81682018-01-0115113515510.1080/1943815X.2018.14717251471725Use of nutrient medium technique for vegetation restoration in Karst region of Southwest ChinaFan Wu0Changwu Liu1Hongkai Chen2Zhaofeng Diao3Shuang Zhao4Hui Xie5Sichuan University-The Hong Kong Polytechnic UniversitySichuan University-The Hong Kong Polytechnic UniversityChongqing Jiaotong UniversitySichuan UniversitySichuan UniversitySichuan ElectricPower Design & Consulting Co.,LTDKarst rocky desertification (KRD) is a global environmental degradation problem caused by human activities and vegetation deterioration. Vegetation restoration in KRD is very difficult due to severe water loss, soil erosion and extensive bare bedrock. For achieving vegetation restoration on bare bedrock areas of KRD, the nutrient medium technique was developed, which is based on the special hydro-geological conditions that is seasonal rainfall is abundant in Karst region of Southwest China and limestone fissures are extremely developed and rich in fissure water. The objective of this research is to investigate the feasibility of using nutrient medium technique to achieve vegetation restoration in KRD region. Through the indoor and field experiments, some properties of the nutrient medium mixture were tested, including water retention, water absorption and nutrient retention. The results showed that the moisture content on the 75th day and water absorption rate of No.2 mixture was 19.9% and 1.67 mm/d, respectively, which could be used as optimum mix ratio for producing nutrient medium. The field results showed that the nutrient medium technique could effectively guarantee the survival of sapling at early age and sustainable growth at later age in the field, and the nutrient medium had less nutrient loss. This novel approach can retain and absorb moisture, and saplings do not need artificially supply water and fertiliser in the dry season, and the use of nutrient medium technique to achieve vegetation restoration in KRD region seems to be a feasible option.http://dx.doi.org/10.1080/1943815X.2018.1471725Karst rocky desertificationvegetation restorationnutrient medium techniquewater retentionfield experiment |
| spellingShingle | Fan Wu Changwu Liu Hongkai Chen Zhaofeng Diao Shuang Zhao Hui Xie Use of nutrient medium technique for vegetation restoration in Karst region of Southwest China Journal of Integrative Environmental Sciences Karst rocky desertification vegetation restoration nutrient medium technique water retention field experiment |
| title | Use of nutrient medium technique for vegetation restoration in Karst region of Southwest China |
| title_full | Use of nutrient medium technique for vegetation restoration in Karst region of Southwest China |
| title_fullStr | Use of nutrient medium technique for vegetation restoration in Karst region of Southwest China |
| title_full_unstemmed | Use of nutrient medium technique for vegetation restoration in Karst region of Southwest China |
| title_short | Use of nutrient medium technique for vegetation restoration in Karst region of Southwest China |
| title_sort | use of nutrient medium technique for vegetation restoration in karst region of southwest china |
| topic | Karst rocky desertification vegetation restoration nutrient medium technique water retention field experiment |
| url | http://dx.doi.org/10.1080/1943815X.2018.1471725 |
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