|Table of Contents|

Early effects of target tree management on undergrowth plant diversity and soil physicochemical properties in Cupressus funebris plantations*(PDF)

Chinese Journal of Applied & Environmental Biology[ISSN:1006-687X/CN:51-1482/Q]

Issue:
2019 06
Page:
1-13
Research Field:
Articles
Publishing date:

Info

Title:
Early effects of target tree management on undergrowth plant diversity and soil physicochemical properties in Cupressus funebris plantations*
Author(s):
Lv Qian1 KANG Wensi1 GUO M aojin1 LUO Tao1 LIU Junjie1 FAN Chuan1 2 & LI Xianwei 1 2**
1 College of Forestry, Sichuan Agricultural University, Chengdu 611130, China
2 Key Laboratory of National Forest Service on Forest Resources Conservation and Ecological Safety in the Upper Reaches of the Yangtze River (Sichuan Agricultrual University), Chengdu 611130, China
Keywords:
Cupressus funebris plantations target tree densities target tree management undergrowth plant diversity life form soil physicochemical properties
CLC:
-
PACS:
DOI:
10.19675/j.cnki.1006-687x.2019.01005
DocumentCode:

Abstract:
In order to improve the undergrowth plant diversity and soil factors of Cupressus funebris plantations in hilly region of central Sichuan , this paper used target tree management to clarify the e arly effects of undergrowth plant diversity and soil physicochemical properties of the local forest ecosystem . In this study, Cupressus funebris plantations were used as the research object to analyze the effects of three different target tree densities (100 target trees per hectare, 150 target trees per hectare, and 200 target trees per hectare) on undergrowth plant diversity and soil physicochemical property after one year target tree management. The results showed that compared with the control (CK): In the early stage of target tree management the plant diversity of shru b layer increased significantly ( P < 0.05). The number of sun plants increased and various life forms appeared in the woodlands. Simpson, Shannon-wienner , and pielou indexes of herbs decreased significantly ( P < 0.05). Under the three different target tree densities, soil pH and available potassium content decreased significantly ( P < 0.05), and non-capillary porosity, the content of total nitrogen, hydrolysable nitrogen, total phosphorus, available phosphorus and organic matter increased significantly ( P < 0.05). Nitrogen and phosphorus are the main limiting factors of plants, plant diversity indices were closely related to total nitrogen, total phosphorus, and available phosphorus. Non-capillary porosity, capillary porosity and available potassium content were most closely related to the diversity indices of herb layer. The results showed that in the early stage of target tree management could increase the diversity of shrub layer, the richness of herbaceous layer and improve the soil physicochemical properties, there were closed correlation between soil factors and undergrowth plant diversity.

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Last Update: 2019-04-12